Non Mag make Up Torques.

27 January 2009 I remember the "good old days" when non-mag collars really were made
of the material Monel and make up torque was 80% of an equivalent
steel connection.

My opinion is that todays Non-Mag connections are of Stainless
Steels with modified chemistry and in many ways their physical
properties are superior to the AISI4140 bar stock.
Hence the connections should be made up to the same torque as that
stated in API RP7G for the connection.

However, many "Senior DDs" are of a different opinion and almost
obstinate in their 80% belief.

Can someone please point me to somewhere that the Non-Mag Make Up
Torques are stated in an API recommended table.

Then next time there is debate, I can diffuse it before it gets
heated. (Or - have I been wrong all these years...).

Thanks a lot........hendo.

2 Answer(s)

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